Frequently Asked Questions
How is Renewage Sustainable?
Renewage treats wastewater with entirely natural phenomena. The effluents are assimilated by the interaction of the plant roots, the gravel substrates they flow through, and the bacteria that is created. The forced bed aeration, unique to Renewage's process accelerates and enhances the process. There is nothing un-natural put into the ground. The plants on the surface are like any garden and require minimal care. They can be replaced as needed. The impermeable liner may last up to 40 years. A Renewage treatment system is affordable and does not rely on fuel, requires minimal pump power, disposes the clean water either into the ground or a nearby receiving stream. Returning the clean water to the soil ensures a clean healthy water table and soil. A Renewage system is adaptable and can be placed almost anywhere. It works in all seasons in the coldest climates.
How new is this technology? How reliable is it?
Renewage’s technology partners developed and have been working with this green treatment technology for many years with over 300 systems in the ground in many parts of the US, Canada and around the world. Residentially, they have been used for single-family homes and housing developments of over 500 homes. Commercially they treat effluents produced by oil refineries, mines, airports, landfill sites, farms, and many other large scale infrastructure projects. The engineers who developed this technology are the most renowned and respected in the field.
What happens to the treated waste water?
The treated wastewater is usually dispersed into the soil adjacent to the treatment area, as it is with a septic system. (The difference is that what is put back into the ground is clean) The area required depends on the density and permeability of the soil. In some cases the water is dispersed into a nearby surface-receiving stream. It can also be collected as grey water and recycled for other applications.
How does it work in the winter?
The treated cell is subsurface, below the frost line, hence it does not freeze. The Renewage system utilizes a unique 'forced bed aeration system' keeping the water moving. The technology was developed in Minnesota, which has one of the harshest winter climates. Some are working on First Nation sites in the Canadian arctic. Flow rates can be controlled for seasonal operations.
What about odors?
The treated waste water is treated subsurface so there are no odors.
What about bio sludge?
All wastewater treatments create bio-sludge. The Renewage wetland treatment produces less sludge than other constructed wetlands and alternative treatment options, and is easily removed.
How effective compared to other treatments?
Renewage compares very well against mechanical and small package treatment systems. Installation and initial capital costs may be a third to half less costly. Ongoing maintenance operation and life cycle costs are the real benefit. Minimal energy and maintenance costs in perpetuity are the real financial benefit of this natural treatment system. On a smaller single unit system, while the initial cost may be slightly higher than a septic system, it is important to keep in mind that Renewage treats wastewater, and does not merely warehouse it before returning untreated wastewater into the aquifer. The long term ecological and health benefits speak for themselves. As with a larger system, the ongoing life-cycle costs make a Renewage system an excellent long term investment.
A Renewage system almost always surpasses the minimal treatment standards required in most jurisdictions. Renewage's Advanced Engineered Wetland treatment can reduce both TSS and BOD levels to less than 10/10
What approvals and permits are required?
Regulatory approvals and permits vary slightly from area to area, and are affected by proximity to sensitive environmentally protected areas. Renewage works with the regulatory authorities and is able to take any size project seamlessly take the process through the design, permitting and construction phases as part of our full service.